Análise ambiental, econômica e financeira da produção de biogás a partir da cama de aviário

Abstract

The poultry activity in Brazil, especially in the south of the country is very intense, being one of the sources of income of a large part of the population that resides in the rural area of the municipalities, an example of this is the southwestern state of Paraná that has units of broilers. The poultry activity generates a high amount of waste from the excretions of poultry, which are sold as fertilizers, but the waste without previous treatment is harmful to the environment, contaminating the soil and water resources. Some important factors are the high consumption of wood to maintain the heating of the aviaries and the consumption of electrical energy to maintain the ambience and operation of the equipment, these costs interfere significantly in the income of the poultry farmers. Thus, the proposal is to use the litter bed waste for energy generation, using a biodigestor to carry out the biogas production process, becoming an alternative for small poultry farmers. From the economic-financial analysis, the viability of the acquisition of a covered lagoon biodigestor and a generator set, which transforms energy from the biogas generated in electric energy, was identified. The project has an initial investment that is paid in four years and from that, generates a revenue of USD 8,865 per year, an important factor for decision making. Knowing that there are few poultry farmers in the region who reuse poultry litter for energy purposes, it is a proposal with good answers regarding the correct destination of the waste generated, as well as the economic and financial feasibility of the project.